Fort Lennox

Fort Lennox National Historic Site occupies most of Île aux Noix, an island in Quebec's Richelieu River, where a British fortification was constructed between 1819 and 1829 to deter American invasion following the War of 1812. The fort features restored stone defense works, barracks, and other buildings arranged around a distinctive star-shaped moat, representing a classic European military design adapted to North American geography. Designated a national historic site in 1920, Fort Lennox commemorates the river's strategic importance as a gateway to Canada and its repeated fortification from 1759 onwards. The site preserves this well-maintained fortress as a testament to 19th-century military engineering and Upper Canada's defensive history.